I have MS Outlook Today 2007 (with Business Contact Manager) installed on a VISTA operating system. It has been working fine on my (Ted's) desktop. I tried to open Outlook in another, new, desktop, and received the message that permission was denied to access default email files, and I was not permitted to open the program at all on the new desktop. When I clicked "OK" everything simply closed. (When I had attempted to open Outlook 2007 on another computer, running Windows XP, the program led me through a setup routine to place the program on that desktop.) How can I open and use Outlook 2007 on the new desktop on my computer that is running VISTA?